Lock-nut.



HL. A. ll'hi. Lomi NUT.

APPLIGATION FILED JULY 12, N09

atente Ear. 29,

4 Z SHEETS-SHEET 1.

@naamw W M, A. wurm.

1.00K NUT.

APPLICATION FILED JULY 12, 1909.

2 SHEETS-SHEET 2.

MELTGN SHEELEE, 0l? E'J, KANSAS.

Speeeaton ci Letters .tatent Application filed 'uly 12, 1909.

a'tented serial no. acuosa To ull whom it' muy concern:

Be it known that MILTON A. SHIrLnR, a citizen of the United States, residing at ola, in the county of Allen, State oic Kansas, have invented certain new and useful linproveinents in Loch-Nuts; and l do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it apgertains to malte and use the same.

The invention relates to a nut loch i'or use on threaded bolts.

The primary object or the invent-ion is the provision or a nut lock in which the saine is held against accidental displacement troni the bolt and at the saine time will permit the ready removal of the nut so that the bolt can be withdrawn from the parts connected thereby without damaging either the bolt or the nut.

Another object oi the invention is the provision of a nut lock which includes a pair of jam nuts one ot which is adapted to interlock with a washer interposed between the nuts and which washer is held against rotation on the bolt to which the nuts are applied, and a wedge key adapted to lock the other nut with the washer to secure them together and prevent the accidental displacement oi' the nut upon the bolt which would result in the latter becoming loose in the work.

Another object of the invention is the provision of a nut lock which is simple in construction, thoroughly reliable and ellicient in operation and inexpensive in the manufacture.

With these and other objects in view the invention consists in the construction, coinbination and arrangement of parts, as will be hereinafter more fully described, illustrated in the accompanyingl drawings, which disclose the preferred form oi" embodiment of the invention, and as brought out in the claims hereunto appended.

,ln the drawings :-l1`igure 1 is a side elevation of a nut lock constructed in accordance with the present invention. Fig. 2 is a longitudinal sectional view the eef with the bolt partly in section. Fig. 3 is a plan view of one tace of the washer. Fig. 'at is a plan view of the opposite face thereof. vFig. 5 is an inner face view of the outside nut. Fig. 6 is one 'face view of the inner nut. Figa 7 is a detail perspective view of the locking key. `itig. 8 is a detail perspective view or the locking pin.

Similar reference characters indicate corresponding parts throughout the several views in the drawings.

teferring to the accompanying drawings the numeral 10, designates an ordinary bolt having the usual head 11, and the opposite screw thr aded portion 12, containing at diametrically opposite points longitudinal guide grooves 13.

Fitted to the screw threaded portion 12, oi the bolt is a main nut la, which is adapted to be set up against a face of a piece of work 15, and the same may be ot any well known shape, preferably in conformity to the shape ot the nuts now in use and projecting irom the outer face ol this nut 1d, at intervals apartare circumferentially arranged tapering spurs or lugs 1G the latter adapted to tit into correspondingly shaped holes 16 arranged in a circle provided in a washer 11", contacting with the outer face of the main nut. 'Elie number of lugs may be increased or decreased at will.

The washer 17, has a suitable central opening to receive the bolt 10, and is provided with opposed nibs or tongues 18, to slidably engage the longitudinal guide grooves 13, in the bolt to prevent the rotation of the washer upon the latter although allowing said washer to move longitudinally of the bolt.

Fitted upon the threaded portion oic the bolt and working against the washer 1'?, is an auxiliary or jam nut 19, the latter containing in its periphery and opening through the inner face thereof a notch or recess 20, which latter 1s adapted to be brought into register with a coextensive slot 21, contained in the said washer 17, when the said nut 19 is brought into locking relation with the washer. l'nserted within the notch or recess 2O is a locking key comprising a bendable strip 22, bent to i'orm a` cottcr pin shape in cross section and provided with outwardly converging shortand long legs or extensions 23 and 2%, respectively, so that when the key is driven into the notch 20, the short leg will lie within the latter and the long leg 2d, will engage the slot 21, in the washer so as to lock the latter and the nut 19, together.

Contained in the nut 19, are openings 25, which latter are adapted to register with lOl the openings 16 arranged in a circle in the washer 17, and into which are driven lool;- ing pins 26, the same having split inner ends 27, s0 that when the pins are driven through the nut 19, and washer 17, their split ends will he caused to slightly spread by contacting with eountersinlrs 17 in the main nut 14, and thereby riveting the pins and thus locking the said washer and auxiliary nut together.

t will be obvious that the lock nut will he prevented from displacement on the holt so that the latter may become loose which would result in the ineective function thereof.

What is claimed is 1. In a nut locl, the combination with a holt, of a nut fitted upon said holt and having outwardly projecting lugs on one face thereof, a washer having recesses to receive the lugs, the said washer containing an elongated slot near its periphery, an auX- iliary nut having a notch at its periphery and opening through the inner face thereof, and means adapted to he inserted in said notch to engage the slot in the washer.

2. In a nut lock, the combination with a bolt, of a nut fitted upon said holt and having outwardly projecting lugs on one face thereof, a washer having recesses to receive the lugs, the said washer containing an elongated slot near its periphery, an auxiliary nut having a notch at its periphery and opening through the inner face thereof, means adapted to he inserted in said notch to engage the slot in the washer, the said Washer and auxiliary nut containing registeriwng` openings, and locking pins engaging said openings.

1 testimony whereof, 1 affix my signature, in presence of two witnesses.

MILTON A. SHIFLER.

Witnesses FPANK S. Bna'rrin, J. E. 'VILLIAMS. 

